Hello everyone.
Today I will share the OSI and TCP/IP models with the layer protocols running on them.
The OSI Model is a logical and conceptual model that defines network communication used by systems open to interconnection and communication with other systems. The Open System Interconnection (OSI Model) also defines a logical network and effectively describes computer packet transfer by using various layers of protocols.
TCP/IP model and the OSI model are conceptual models used for the same purpose, but we sometimes prefer the TCP/IP model because the OSI model is generic and doesn’t always fit into modern network troubleshooting. For example, not all OSI layers are used in some applications, which can be confusing. For that reason, the TCP/IP model is a little easier to for troubleshooting a networking problem.
Here, are some important differences between the OSI & TCP/IP model:
And lets see the both models side-by-side with protocols.
That's it. I hope that useful. 
